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Example 2 - Chapter 13 Class 12 Probability (Term 2)
Last updated at May 25, 2021 by Teachoo
Transcript
Example 2 A family has two children. What is the probability that both the children are boys given that at least one of them is a boy ? A Family has two children Let girls be denoted by g & boys be denoted by b S = {(g, g), (g, b), (b, g), (b, b)} We need to find the probability that both the children are boys, given at least one them is a boys F : at least one of the children is a boys E : both the children are boys We need to find P(E|F) Also, E F = {(b, b)} P(E F ) = 1 4 Now, P(E|F) = ( ) ( ) = 1 4 3 4 = 1 3 P(E|F) =
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Example 26 Important
Example 27 Deleted for CBSE Board 2022 Exams
Example 28 Important Deleted for CBSE Board 2022 Exams
Example 29 Important Deleted for CBSE Board 2022 Exams
Example 30 Important Deleted for CBSE Board 2022 Exams
Example 31 Important Deleted for CBSE Board 2022 Exams
Example 32 Important Deleted for CBSE Board 2022 Exams
Example 33 Important
Example 34 Deleted for CBSE Board 2022 Exams
Example 35 Deleted for CBSE Board 2022 Exams
Example 36 Important
Example 37 Important
Chapter 13 Class 12 Probability (Term 2)
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About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.